A general view shows the Moscow International Business Center and the Mercury City Tower after a ceremony to present it as Europe's tallest skyscraper in MoscowA general view shows the Moscow International Business Center and the Mercury City Tower (R) after a ceremony to present it as Europe's tallest skyscraper in Moscow, November 1, 2012. The 339 meters (1,112 feet) tall Mercury City Tower, primarily owned by billionaire Igor Kesaev, is one of the buildings forming the Moscow International Business Center also known as "Moskva-City". The tower, which is still under going construction, reached its full height making it at present, the tallest skyscraper in Europe, according to organizers of the ceremony and local media.

A general view shows the Mercury City Tower after a ceremony to present it as Europe's tallest skyscraper in MoscowA general view shows the Mercury City Tower after a ceremony to present it as Europe's tallest skyscraper in Moscow, November 1, 2012. The 339 meters (1,112 feet) tall Mercury City Tower, primarily owned by billionaire Igor Kesaev, is one of the buildings forming the Moscow International Business Center also known as "Moskva-City". The tower, which is still under going construction, reached its full height making it at present, the tallest skyscraper in Europe, according to organizers of the ceremony and local media.

A general view shows the Mercury City Tower after a ceremony to present it as Europe's tallest skyscraper in MoscowA general view shows the Mercury City Tower after a ceremony to present it as Europe's tallest skyscraper in Moscow, November 1, 2012. The 339 meters (1,112 feet) tall Mercury City Tower, primarily owned by billionaire Igor Kesaev, is one of the buildings forming the Moscow International Business Center also known as "Moskva-City". The tower, which is still under going construction, reached its full height making it at present, the tallest skyscraper in Europe, according to organizers of the ceremony and local media.

All New: Tallest Building in EuropeThe Mercury City tower, right, is being constructed in Moscow, Russia, Thursday, Nov. 1, 2012. Moscow is reclaiming bragging rights for having Europe s tallest building after losing the distinction for a few months to London. The mixed office and residential tower called Mercury City has topped out at 338 meters (1,109 feet), officials of its development company said Thursday.

All New: Tallest Building in EuropeThe Moscow City complex with the Mercury City tower, right, is being constructed in Moscow, Russia, Thursday, Nov. 1, 2012. Moscow is reclaiming bragging rights for having Europe s tallest building after losing the distinction for a few months to London. The mixed office and residential tower called Mercury City has topped out at 338 meters (1,109 feet), officials of its development company said Thursday.

Russian billionaire Igor Kesaev delivers a speech during a ceremony to present The Mercury City Tower as Europe's tallest skyscraper in MoscowRussian billionaire Igor Kesaev delivers a speech during a ceremony to present The Mercury City Tower as Europe's tallest skyscraper in Moscow, November 1, 2012. The 339 meters (1,112 feet) tall Mercury City Tower, primarily owned by billionaire Igor Kesaev, is one of the buildings forming the Moscow International Business Center also known as "Moskva-City". The tower, which is still under going construction, reached its full height making it at present, the tallest skyscraper in Europe, according to organizers of the ceremony and local media.

A general view shows the Mercury City Tower after a ceremony to present it as Europe's tallest skyscraper in Moscow

A general view shows the Mercury City Tower after a ceremony to present it as Europe's tallest skyscraper in Moscow, November 1, 2012. The 339 meters (1,112 feet) tall Mercury City Tower, primarily owned by billionaire Igor Kesaev, is one of the buildings forming the Moscow International Business Center also known as "Moskva-City". The tower, which is still under going construction, reached its full height making it at present, the tallest skyscraper in Europe, according to organizers of the ceremony and local media.